Evs: 252 SpDef 252 Hp 4 Spd
I like also Mandibuzz and I was thinking a set with Toxic, Brave Bird, Roost, Taunt.
What should I do for my entire team?
Spiritomb is great, if this is any tier also add Darkrai, Weavile, Hydreigon, Umbreon, Krookodile. Other good choices include Sableye, SCrafty, Houdoum, and Sharpedo...
Hope I helped!!
Another one to consider is Zoroark, it is fast and you can nasty plot + dark pulse foes